Set aside two large baking sheets.,Into a large microwave-safe bowl, pour the pretzels.,In a small bowl, whisk together the oil, sugar, and pumpkin pie spice until well combined. Drizzle mixture over pretzels and toss to coat.,______,Melt the white chocolate (over low heat or in the microwave in 30 second increments, stirring in between each additional increment and being careful not to burn). Drizzle white chocolate over the pretzels. Then, sprinkle the pretzels with candy sprinkles, if using.,Allow white chocolate to set and cool completely. Then break the pretzels apart and store in bags or airtight containers.,Adapted from Your Cup of Cake.